Emerson Alco 048816 Indicator

The Emerson Alco 048816 (Model AMI-1SS9) is an essential diagnostic component for commercial refrigeration and air conditioning systems requiring precise moisture monitoring. Designed with a 1 1/8" ODF sweat connection, this moisture liquid indicator provides a clear visual signal of the refrigerant's state and moisture content. With a 650 PSI maximum working pressure, it is engineered for high-pressure durability across CFC, HCFC, and HFC refrigerants, including common gases like R-410A and R-404A. The large viewing lens and wide-angle visibility allow technicians to accurately detect flash gas or refrigerant moisture levels without parallax error. High-sensitivity chemically-impregnated paper changes color to indicate if the system is dry, cautioning, or wet, ensuring compressor reliability and preventing acid formation within the hermetic circuit. This solid brass body indicator is built for field longevity and easy system troubleshooting.

• High Pressure Rating: Rated for up to 650 PSI, making it compatible with high-pressure synthetic lubricants and modern refrigerants.
• Universal Refrigerant Compatibility: Field-proven for use with CFC, HCFC, and HFC blends, reducing the need for multiple SKUs.
• Enhanced Visibility: Features a polished optical glass lens and a wide-angle viewing port for rapid detection of bubbles or moisture-driven color shifts.
• Corrosion Resistance: Robust forged brass construction prevents leaks and withstands harsh mechanical environments.
• Accurate Diagnostics: Precision moisture-sensitive elements provide reliable PPM (parts per million) moisture detection to protect TXVs and internal components.

What does a color change in the AMI-1SS9 indicate for a technician?
The internal indicator paper reacts to the moisture concentration in the liquid line. A "dry" reading confirms the filter drier is functioning correctly, while a "wet" reading signals that a drier change-out is required to prevent acid buildup and thermal expansion valve freeze-ups.

Can the Emerson 048816 be used in high-side liquid lines?
Yes, its 650 PSI rating and 1 1/8" sweat fittings are designed specifically for liquid line installation in commercial systems to monitor the state of the refrigerant before it reaches the expansion device.

Is this moisture indicator compatible with POE oils?
Yes, the Emerson AMI series is engineered to work effectively with both mineral oils and Polyolester (POE) lubricants commonly found in HFC systems.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.